• No results found

Estimation of w e for the Mixture Model Approach . 29

A Unified Approach to Statistical Estimation and Model Parameterisation in Mass Calibration

A Unified Approach to Statistical Estimation and Model Parameterisation in Mass Calibration

... W e m ight note, as show n earlier, ...s w e have seen, theoretically and experim entally, the posterior estim ates alw ays have low er covariance matrices than does the prior inform ...ates ...

239

Nonparametric e-mixture Estimation

Nonparametric e-mixture Estimation

... In the conventional parametric mixture estimation setting, each parameter ξi of the model is estimated based on each data set D i , and this procedure is regarded as the projection of em[r] ...

39

A mixture model approach to sample size estimation in two- sample comparative microarray experiments

A mixture model approach to sample size estimation in two- sample comparative microarray experiments

... component mixture model to the observed statistics of pilot ...last approach that needs men- tion is that of Pawitan et ...a mixture model to observed t-statistics using a ...

12

Maximum Likelihood Estimation of the Multivariate Normal Mixture Model

Maximum Likelihood Estimation of the Multivariate Normal Mixture Model

... This paper is organized as follows. In Section 2 we discuss how to take account of the two constraints: symmetry of the variance matrices and the fact that the weights sum to one. Our general result (Theorem 1) is formu- ...

26

Maximum Likelihood Estimation of the Multivariate Normal Mixture Model

Maximum Likelihood Estimation of the Multivariate Normal Mixture Model

... This paper is organized as follows. In Section 2 we discuss how to take account of the two constraints: symmetry of the variance matrices and the fact that the weights sum to one. Our general result (Theorem 1) is formu- ...

26

Loss Severity Distribution Estimation Of Operational Risk Using Gaussian Mixture Model For Loss Distribution Approach

Loss Severity Distribution Estimation Of Operational Risk Using Gaussian Mixture Model For Loss Distribution Approach

... How k component on GMM esti- mate the severity distribution, for k = 1,2,3,4, and k = 10. This estimation was performed on three groups of data, 3 years, 5 years of data, and the data 10 years. This estimating was ...

7

Bayes approach to explore the mixture failure rate model

Bayes approach to explore the mixture failure rate model

... the model, the modern computational methods known as the cross- entropy (CE) [53] and Markov chain Monte Carlo (MCMC) methods are ...the model introduced by Xie and Lai [75] has 4 param- eters; the models ...

130

Estimation of Finite Mixture Models

Estimation of Finite Mixture Models

... class is the most accurate. The set theoretic estimates guarantee that a solution will satisfy the finite mixture model set as well as the sum-to-one and nonnegativity constraints. The SPOCS estimate is not ...

139

Asymmetric Stochastic Conditional Duration Model --A Mixture of Normals Approach"

Asymmetric Stochastic Conditional Duration Model --A Mixture of Normals Approach"

... SCD model under the flexible bivariate MN specifica- ...our approach is that the structure of our SCD model could accommodate different correlation structures between the innovations from the ...

36

A model based approach for state estimation for networks

A model based approach for state estimation for networks

... process model. It is a higher order LWR model, which is more suitable than a first order model because of the more correlations between links that can be captured and lead to more opportunities for ...

86

BAYESIAN CLASSIFICATION USING GAUSSIAN MIXTURE MODEL AND EM ESTIMATION: IMPLEMENTATIONS AND COMPARISONS

BAYESIAN CLASSIFICATION USING GAUSSIAN MIXTURE MODEL AND EM ESTIMATION: IMPLEMENTATIONS AND COMPARISONS

... Another downside of EM is its crash rate, but as the letter image recognition data experi- ments proved, it can work in situations where the other algorithms fail. The FJ implementation determines the number of ...

39

Comparing the Intercept Mixture Model with the Slack-Variable Mixture Model

Comparing the Intercept Mixture Model with the Slack-Variable Mixture Model

... intercept model we showed that the intercept model can be used to reduce the ill- conditioning ...intercept model, that is, the choose of which compo- nent should be replaced for a constant term, ...

11

Mixture Modelling Approach

Mixture Modelling Approach

... the model with four latent classes is the optimal ...the model chosen to proceed with analysis needs to be able to demonstrate a conditional LGMM with ...the model with four latent classes the ...

42

A mixture model based approach for estimating the FDR in replicated microarray data

A mixture model based approach for estimating the FDR in replicated microarray data

... new model based method as an improvement of the permutation based FDR estimation method of SAM [1] The new method uses the t-mixture model which can model the microarray data better ...

5

A mixture model approach to multiple testing for the genetic analysis of gene expression

A mixture model approach to multiple testing for the genetic analysis of gene expression

... finite mixture model to estimate the local FDR (lFDR), the FDR, and the false non-discovery rate (FNR) in variance-component linkage ...parametric approach allows empirical estimation of an ...

5

On Partial Defaults in Portfolio Credit Risk : A Poisson Mixture Model Approach

On Partial Defaults in Portfolio Credit Risk : A Poisson Mixture Model Approach

... can model the default as a Bernoulli experiment with parameter ...the model with deterministic LGD’s no further insecurity is left, and thus the counterpart must be excluded from the calculation of the loss ...

27

Rubber Price Effect on Exchange Rate: A Bayesian Mixture Model Approach

Rubber Price Effect on Exchange Rate: A Bayesian Mixture Model Approach

... Finite mixture model, Bayesian method, rubber price and exchange rate ...Finite mixture model is a mixture of other distributions in modeling a statistical ...This model also ...

7

Estimation of the Normal Mixture-FIEGARCH Models

Estimation of the Normal Mixture-FIEGARCH Models

... Further Bollerslev and Mikkelsen(1996) proposed the Fractional Integrated Exponential Generalized Autoregressive Conditional Heteroscedasticity (F- IEGARCH) model, it can not only descri[r] ...

17

On clustering procedures and nonparametric mixture estimation

On clustering procedures and nonparametric mixture estimation

... nonparametric estimation of conditional den- sities in mixture models in the case when additional covariates are ...proposed approach consists of performing a prelim- inary clustering algorithm on ...

38

MIXTURE OF TWO FRÈCHET DISTRIBUTIONS:PROPERTIES AND ESTIMATION

MIXTURE OF TWO FRÈCHET DISTRIBUTIONS:PROPERTIES AND ESTIMATION

... The Mixture models play a vital role in many practical ...the mixture model of two Frèchet distributions ...the model with hazard function are ...

7

Show all 10000 documents...

Related subjects